260 lines
9.1 KiB
Java
260 lines
9.1 KiB
Java
package com.rarchives.ripme.ripper.rippers;
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import java.io.IOException;
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import java.net.MalformedURLException;
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import java.net.URL;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import org.apache.log4j.Logger;
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import org.json.JSONArray;
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import org.json.JSONException;
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import org.json.JSONObject;
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import org.jsoup.Jsoup;
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import org.jsoup.nodes.Document;
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import org.jsoup.nodes.Element;
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import com.rarchives.ripme.ripper.AbstractRipper;
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import com.rarchives.ripme.ui.RipStatusMessage.STATUS;
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public class ImgurRipper extends AbstractRipper {
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private static final String DOMAIN = "imgur.com",
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HOST = "imgur";
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private static final Logger logger = Logger.getLogger(ImgurRipper.class);
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private final int SLEEP_BETWEEN_ALBUMS;
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static enum ALBUM_TYPE {
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ALBUM,
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USER,
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USER_ALBUM,
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SERIES_OF_IMAGES
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};
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private ALBUM_TYPE albumType;
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public ImgurRipper(URL url) throws IOException {
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super(url);
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SLEEP_BETWEEN_ALBUMS = 1;
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}
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public void processURL(URL url, String prefix, String subdirectory) {
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logger.debug("Found URL: " + url);
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addURLToDownload(url, prefix, subdirectory);
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}
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public boolean canRip(URL url) {
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if (!url.getHost().endsWith(DOMAIN)) {
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return false;
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}
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try {
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getGID(url);
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} catch (Exception e) {
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// Can't get GID, can't rip it.
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return false;
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}
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return true;
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}
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public URL sanitizeURL(URL url) throws MalformedURLException {
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String u = url.toExternalForm();
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if (u.indexOf('#') >= 0) {
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u = u.substring(0, u.indexOf('#'));
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}
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u = u.replace("https?://m\\.imgur\\.com", "http://imgur.com");
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u = u.replace("https?://i\\.imgur\\.com", "http://imgur.com");
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return new URL(u);
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}
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@Override
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public void rip() throws IOException {
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switch (albumType) {
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case ALBUM:
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// Fall-through
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case USER_ALBUM:
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ripAlbum(this.url);
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break;
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case SERIES_OF_IMAGES:
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ripAlbum(this.url);
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break;
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case USER:
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// TODO Get all albums by user
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ripUserAccount(url);
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break;
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}
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waitForThreads();
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}
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private void ripAlbum(URL url) throws IOException {
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ripAlbum(url, "");
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}
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private void ripAlbum(URL url, String subdirectory) throws IOException {
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int index = 0;
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this.sendUpdate(STATUS.LOADING_RESOURCE, url.toExternalForm());
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index = 0;
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for (URL singleURL : getURLsFromAlbum(url)) {
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index += 1;
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processURL(singleURL, String.format("%03d_", index), subdirectory);
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}
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}
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public static List<URL> getURLsFromAlbum(URL url) throws IOException {
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List<URL> result = new ArrayList<URL>();
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logger.info(" Retrieving " + url.toExternalForm());
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Document doc = Jsoup.connect(url.toExternalForm())
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.userAgent(USER_AGENT)
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.get();
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// Try to use embedded JSON to retrieve images
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Pattern p = Pattern.compile("^.*Imgur\\.Album\\.getInstance\\((.*)\\);.*$", Pattern.DOTALL);
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Matcher m = p.matcher(doc.body().html());
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if (m.matches()) {
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try {
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JSONObject json = new JSONObject(m.group(1));
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JSONArray images = json.getJSONObject("images").getJSONArray("items");
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int imagesLength = images.length();
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for (int i = 0; i < imagesLength; i++) {
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JSONObject image = images.getJSONObject(i);
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URL imageURL = new URL(
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// CDN url is provided elsewhere in the document
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"http://i.imgur.com/"
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+ image.get("hash")
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+ image.get("ext"));
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result.add(imageURL);
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}
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return result;
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} catch (JSONException e) {
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logger.debug("Error while parsing JSON at " + url + ", continuing", e);
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}
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}
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p = Pattern.compile("^.*= new ImgurShare\\((.*)\\);.*$", Pattern.DOTALL);
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m = p.matcher(doc.body().html());
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if (m.matches()) {
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try {
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JSONObject json = new JSONObject(m.group(1));
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JSONArray images = json.getJSONArray("hashes");
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int imagesLength = images.length();
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for (int i = 0; i < imagesLength; i++) {
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JSONObject image = images.getJSONObject(i);
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URL imageURL = new URL(
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"http:" + json.get("cdnUrl")
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+ "/"
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+ image.get("hash")
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+ image.get("ext"));
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result.add(imageURL);
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}
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return result;
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} catch (JSONException e) {
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logger.debug("Error while parsing JSON at " + url + ", continuing", e);
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}
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}
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// TODO If album is empty, use this to check for cached images:
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// http://i.rarchives.com/search.cgi?cache=http://imgur.com/a/albumID
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// At the least, get the thumbnails.
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logger.info("[!] Falling back to elemental retrieval method");
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// Fall back to parsing HTML elements
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// NOTE: This does not always get the highest-resolution images!
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for (Element thumb : doc.select("div.image")) {
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String image;
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if (thumb.select("a.zoom").size() > 0) {
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// Clickably full-size
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image = "http:" + thumb.select("a").attr("href");
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} else if (thumb.select("img").size() > 0) {
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image = "http:" + thumb.select("img").attr("src");
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} else {
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// Unable to find image in this div
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logger.error("[!] Unable to find image in div: " + thumb.toString());
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continue;
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}
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result.add(new URL(image));
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}
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return result;
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}
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/**
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* Rips all albums in an imgur user's account.
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* @param url
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* URL to imgur user account (http://username.imgur.com)
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* @throws IOException
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*/
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private void ripUserAccount(URL url) throws IOException {
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logger.info("[ ] Retrieving " + url.toExternalForm());
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Document doc = Jsoup.connect(url.toExternalForm()).get();
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for (Element album : doc.select("div.cover a")) {
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if (!album.hasAttr("href")
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|| !album.attr("href").contains("imgur.com/a/")) {
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continue;
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}
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String albumID = album.attr("href").substring(album.attr("href").lastIndexOf('/') + 1);
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URL albumURL = new URL("http:" + album.attr("href") + "/noscript");
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try {
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ripAlbum(albumURL, albumID);
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Thread.sleep(SLEEP_BETWEEN_ALBUMS * 1000);
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} catch (Exception e) {
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logger.error("Error while ripping album: " + e.getMessage(), e);
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continue;
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}
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}
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}
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@Override
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public String getHost() {
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return HOST;
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}
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@Override
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public String getGID(URL url) throws MalformedURLException {
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Pattern p = Pattern.compile("^https?://(m\\.)?imgur\\.com/a/([a-zA-Z0-9]{5,8}).*$");
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Matcher m = p.matcher(url.toExternalForm());
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if (m.matches()) {
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// Imgur album
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albumType = ALBUM_TYPE.ALBUM;
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String gid = m.group(m.groupCount());
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this.url = new URL("http://imgur.com/a/" + gid);
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return gid;
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}
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p = Pattern.compile("^https?://([a-zA-Z0-9\\-]{3,})\\.imgur\\.com/?$");
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m = p.matcher(url.toExternalForm());
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if (m.matches()) {
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// Root imgur account
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String gid = m.group(1);
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if (gid.equals("i")) {
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throw new MalformedURLException("Ripping i.imgur.com links not supported");
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}
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albumType = ALBUM_TYPE.USER;
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return gid;
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}
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p = Pattern.compile("^https?://([a-zA-Z0-9\\-]{3,})\\.imgur\\.com/([a-zA-Z0-9])?$");
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m = p.matcher(url.toExternalForm());
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if (m.matches()) {
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// Imgur account album
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albumType = ALBUM_TYPE.USER_ALBUM;
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return m.group();
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}
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p = Pattern.compile("^https?://(i\\.)?imgur\\.com/([a-zA-Z0-9,]{5,}).*$");
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m = p.matcher(url.toExternalForm());
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if (m.matches()) {
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// Series of imgur images
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albumType = ALBUM_TYPE.SERIES_OF_IMAGES;
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String gid = m.group(m.groupCount());
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if (!gid.contains(",")) {
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throw new MalformedURLException("Imgur image doesn't contain commas");
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}
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return gid.replaceAll(",", "-");
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}
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throw new MalformedURLException("Unexpected URL format: " + url.toExternalForm());
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}
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public ALBUM_TYPE getAlbumType() {
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return albumType;
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}
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}
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